sudo umount /home/liyaze/nv_usage/flask_app -l
sudo umount /home/liyaze/AICIty-reID-2020-master -l
sudo umount /home/liyaze/yolov5-7.0 -l
sudo umount /home/liyaze/yolov5-6.1 -l
sudo umount /home/liyaze/crnn -l
sudo umount /home/liyaze/pytorch-retinaface-master -l
sudo umount /home/liyaze/pytorch-image-models -l
sudo umount /home/liyaze/model-release -l
sudo umount /home/liyaze/data22 -l
sudo umount /home/liyaze/yolo_det -l
sudo umount /home/liyaze/insightface-master -l